英语词汇“up and down”的释义、用法及例句-英汉例句词典-知否

词汇	up and down
例句	Idiom The boat bobbed up and down on the water. 小船在水面颠簸。 She was pacing up and down in front of her desk. 她在办公桌前踱来踱去。 My relationship with him was up and down. 我跟他的关系忽冷忽热。
随便看	cost-cutting cost-effective cost-effectively cost-effectiveness cost-efficient costing costlier costliest costliness costly cost/pay an arm and a leg cost price costs cost somebody dear costume costumed costume jewelry costumer costumier cosy cosying cosy up to cosy up to somebody cot coterie

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